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Glowing Muffler? And Missing Battery Cover Help.


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26 replies to this topic

#16 SupplySergeant ONLINE  

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Posted October 01, 2013 - 05:02 PM

The lowes l130

Makes more sense, thanks.



#17 LilysDad ONLINE  

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Posted October 01, 2013 - 05:20 PM

Would a bad exhaust valve do that?



#18 pwombles OFFLINE  

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Posted October 01, 2013 - 08:00 PM

How do I know if the exhaust valve is bad? I cleaned it and the intake valve to shiny metal already.



#19 bread320i OFFLINE  

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Posted October 01, 2013 - 08:39 PM

I would check you timing.

Is the engine difficult to start?

Does it ever back fire?

If so your timing is most likely off. Try closing the point gap.



#20 broken2 OFFLINE  

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Posted October 01, 2013 - 08:49 PM

Sometimes a tractor that is running lean will run hotter. Maybe open up the main jet a quarter turn and see?

 

 

Try adjusting the high speed jet 1/4 turn richer and see if it changes anything. Too lean maybe?

 


I agree with trying a richer air/fuel mixture, it's a quick, easy adjustment and a likely culprit.


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#21 pwombles OFFLINE  

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Posted October 02, 2013 - 06:55 AM

I would check you timing.

Is the engine difficult to start?

Does it ever back fire?

If so your timing is most likely off. Try closing the point gap.

When its cold, you choke it and it fires right off. if you shut it off, then restart, it fires right off too. no problems starting.

 

 


I agree with trying a richer air/fuel mixture, it's a quick, easy adjustment and a likely culprit.

 

im going to mess with the adjustments a bit more. Having trouble getting the low speed set. at full throttle it runs great.



#22 SupplySergeant ONLINE  

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Posted October 06, 2013 - 09:43 AM

pwombles, did you ever get this figured out? I'd love to know what the cause turned out to be!



#23 Chopperhed OFFLINE  

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Posted October 16, 2013 - 07:41 PM

How do I know if the exhaust valve is bad? I cleaned it and the intake valve to shiny metal already.


It's been my experience that a "shiny" valve is not good. They should have a grey ring around the middle of the seat. A little off center on the valve face is OK, but if the grey area is close to the thin edge of the seat breakage or chipping is possible. If the grey ring is near the thick side of the valve, you have room for machining and lapping.

If they don't have the grey ring, they don't seal properly.

Not to worry, its not difficult to lap valves.
All you need is some valve lapping compound, and the suction cup on a stick. There are tutorials and videos all over the web on how to do it.

Edited by Chopperhed, October 16, 2013 - 07:42 PM.


#24 pwombles OFFLINE  

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Posted October 16, 2013 - 08:51 PM

I have mowed with it twice, and the kids have rode it around a lot. at full throttle, It still turns a little red, but it runs and starts great. I might tear into it this winter.



#25 MH81 ONLINE  

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Posted October 17, 2013 - 05:56 AM

I have mowed with it twice, and the kids have rode it around a lot. at full throttle, It still turns a little red, but it runs and starts great. I might tear into it this winter.


What did you do to partially correct the situation?

#26 pigsitter OFFLINE  

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Posted October 17, 2013 - 06:31 AM

I had this issue on an atv once and it turned out to be a partially plugged muffler



#27 pwombles OFFLINE  

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Posted October 17, 2013 - 06:46 AM

Installed a new muffler. I cleaned the face of the valve, but will probably takeout the valves this winter and atleast lap them, But I might just replace them if i have them out anyway. messed with the carb settings and it made no difference, although I cannot get it to idle smooth. Runs strong otherwise.






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